12874c5fdSThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-or-later */ 21da177e4SLinus Torvalds /* 31da177e4SLinus Torvalds * Linux ethernet bridge 41da177e4SLinus Torvalds * 51da177e4SLinus Torvalds * Authors: 61da177e4SLinus Torvalds * Lennert Buytenhek <buytenh@gnu.org> 71da177e4SLinus Torvalds */ 81da177e4SLinus Torvalds 91da177e4SLinus Torvalds #ifndef _BR_PRIVATE_H 101da177e4SLinus Torvalds #define _BR_PRIVATE_H 111da177e4SLinus Torvalds 121da177e4SLinus Torvalds #include <linux/netdevice.h> 131da177e4SLinus Torvalds #include <linux/if_bridge.h> 1491d2c34aSHerbert Xu #include <linux/netpoll.h> 15406818ffSEric Dumazet #include <linux/u64_stats_sync.h> 164adf0af6SSimon Wunderlich #include <net/route.h> 17efb6de9bSBernhard Thaler #include <net/ip6_fib.h> 18243a2e63SVlad Yasevich #include <linux/if_vlan.h> 192594e906SNikolay Aleksandrov #include <linux/rhashtable.h> 2025127759SReshetova, Elena #include <linux/refcount.h> 211da177e4SLinus Torvalds 221da177e4SLinus Torvalds #define BR_HASH_BITS 8 231da177e4SLinus Torvalds #define BR_HASH_SIZE (1 << BR_HASH_BITS) 241da177e4SLinus Torvalds 251da177e4SLinus Torvalds #define BR_HOLD_TIME (1*HZ) 261da177e4SLinus Torvalds 271da177e4SLinus Torvalds #define BR_PORT_BITS 10 281da177e4SLinus Torvalds #define BR_MAX_PORTS (1<<BR_PORT_BITS) 291da177e4SLinus Torvalds 30d08c6bc0SNikolay Aleksandrov #define BR_MULTICAST_DEFAULT_HASH_MAX 4096 31d08c6bc0SNikolay Aleksandrov 3285826610STobias Waldekranz #define BR_HWDOM_MAX BITS_PER_LONG 3385826610STobias Waldekranz 349cde0708SStephen Hemminger #define BR_VERSION "2.3" 359cde0708SStephen Hemminger 36515853ccSstephen hemminger /* Control of forwarding link local multicast */ 37515853ccSstephen hemminger #define BR_GROUPFWD_DEFAULT 0 38784b58a3SBernhard Thaler /* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */ 395af48b59SNikolay Aleksandrov enum { 405af48b59SNikolay Aleksandrov BR_GROUPFWD_STP = BIT(0), 415af48b59SNikolay Aleksandrov BR_GROUPFWD_MACPAUSE = BIT(1), 425af48b59SNikolay Aleksandrov BR_GROUPFWD_LACP = BIT(2), 435af48b59SNikolay Aleksandrov }; 445af48b59SNikolay Aleksandrov 455af48b59SNikolay Aleksandrov #define BR_GROUPFWD_RESTRICTED (BR_GROUPFWD_STP | BR_GROUPFWD_MACPAUSE | \ 465af48b59SNikolay Aleksandrov BR_GROUPFWD_LACP) 47f2808d22SToshiaki Makita /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ 48f2808d22SToshiaki Makita #define BR_GROUPFWD_8021AD 0xB801u 49515853ccSstephen hemminger 509cde0708SStephen Hemminger /* Path to usermode spanning tree program */ 519cde0708SStephen Hemminger #define BR_STP_PROG "/sbin/bridge-stp" 528cbb512eSStephen Hemminger 5331cbc39bSNikolay Aleksandrov #define BR_FDB_NOTIFY_SETTABLE_BITS (FDB_NOTIFY_BIT | FDB_NOTIFY_INACTIVE_BIT) 5431cbc39bSNikolay Aleksandrov 551da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 561da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 571da177e4SLinus Torvalds typedef __u16 port_id; 581da177e4SLinus Torvalds 591c1cb6d0SNikolay Aleksandrov struct bridge_id { 601da177e4SLinus Torvalds unsigned char prio[2]; 61e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 621da177e4SLinus Torvalds }; 631da177e4SLinus Torvalds 641c1cb6d0SNikolay Aleksandrov struct mac_addr { 65e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 661da177e4SLinus Torvalds }; 671da177e4SLinus Torvalds 68cc0fdd80SLinus Lüssing #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 69cc0fdd80SLinus Lüssing /* our own querier */ 7090010b36SLinus Lüssing struct bridge_mcast_own_query { 71cc0fdd80SLinus Lüssing struct timer_list timer; 72cc0fdd80SLinus Lüssing u32 startup_sent; 73cc0fdd80SLinus Lüssing }; 74cc0fdd80SLinus Lüssing 75cc0fdd80SLinus Lüssing /* other querier */ 7690010b36SLinus Lüssing struct bridge_mcast_other_query { 77cc0fdd80SLinus Lüssing struct timer_list timer; 78cc0fdd80SLinus Lüssing unsigned long delay_time; 79cc0fdd80SLinus Lüssing }; 80dc4eb53aSLinus Lüssing 81dc4eb53aSLinus Lüssing /* selected querier */ 82dc4eb53aSLinus Lüssing struct bridge_mcast_querier { 83dc4eb53aSLinus Lüssing struct br_ip addr; 842cd41431SLinus Lüssing struct net_bridge_port __rcu *port; 85dc4eb53aSLinus Lüssing }; 861080ab95SNikolay Aleksandrov 871080ab95SNikolay Aleksandrov /* IGMP/MLD statistics */ 881080ab95SNikolay Aleksandrov struct bridge_mcast_stats { 891080ab95SNikolay Aleksandrov struct br_mcast_stats mstats; 901080ab95SNikolay Aleksandrov struct u64_stats_sync syncp; 911080ab95SNikolay Aleksandrov }; 92cc0fdd80SLinus Lüssing #endif 93cc0fdd80SLinus Lüssing 949632233eSNikolay Aleksandrov /* net_bridge_mcast_port must be always defined due to forwarding stubs */ 959632233eSNikolay Aleksandrov struct net_bridge_mcast_port { 969632233eSNikolay Aleksandrov #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 979632233eSNikolay Aleksandrov struct net_bridge_port *port; 98613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan; 999632233eSNikolay Aleksandrov 1009632233eSNikolay Aleksandrov struct bridge_mcast_own_query ip4_own_query; 1019632233eSNikolay Aleksandrov struct timer_list ip4_mc_router_timer; 1029632233eSNikolay Aleksandrov struct hlist_node ip4_rlist; 1039632233eSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 1049632233eSNikolay Aleksandrov struct bridge_mcast_own_query ip6_own_query; 1059632233eSNikolay Aleksandrov struct timer_list ip6_mc_router_timer; 1069632233eSNikolay Aleksandrov struct hlist_node ip6_rlist; 1079632233eSNikolay Aleksandrov #endif /* IS_ENABLED(CONFIG_IPV6) */ 1089632233eSNikolay Aleksandrov unsigned char multicast_router; 1099632233eSNikolay Aleksandrov #endif /* CONFIG_BRIDGE_IGMP_SNOOPING */ 1109632233eSNikolay Aleksandrov }; 1119632233eSNikolay Aleksandrov 112d3d065c0SNikolay Aleksandrov /* net_bridge_mcast must be always defined due to forwarding stubs */ 113d3d065c0SNikolay Aleksandrov struct net_bridge_mcast { 114d3d065c0SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 115d3d065c0SNikolay Aleksandrov struct net_bridge *br; 116613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan; 117d3d065c0SNikolay Aleksandrov 118d3d065c0SNikolay Aleksandrov u32 multicast_last_member_count; 119d3d065c0SNikolay Aleksandrov u32 multicast_startup_query_count; 120d3d065c0SNikolay Aleksandrov 121d3d065c0SNikolay Aleksandrov u8 multicast_igmp_version; 122d3d065c0SNikolay Aleksandrov u8 multicast_router; 123d3d065c0SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 124d3d065c0SNikolay Aleksandrov u8 multicast_mld_version; 125d3d065c0SNikolay Aleksandrov #endif 126d3d065c0SNikolay Aleksandrov unsigned long multicast_last_member_interval; 127d3d065c0SNikolay Aleksandrov unsigned long multicast_membership_interval; 128d3d065c0SNikolay Aleksandrov unsigned long multicast_querier_interval; 129d3d065c0SNikolay Aleksandrov unsigned long multicast_query_interval; 130d3d065c0SNikolay Aleksandrov unsigned long multicast_query_response_interval; 131d3d065c0SNikolay Aleksandrov unsigned long multicast_startup_query_interval; 132d3d065c0SNikolay Aleksandrov struct hlist_head ip4_mc_router_list; 133d3d065c0SNikolay Aleksandrov struct timer_list ip4_mc_router_timer; 134d3d065c0SNikolay Aleksandrov struct bridge_mcast_other_query ip4_other_query; 135d3d065c0SNikolay Aleksandrov struct bridge_mcast_own_query ip4_own_query; 136d3d065c0SNikolay Aleksandrov struct bridge_mcast_querier ip4_querier; 137d3d065c0SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 138d3d065c0SNikolay Aleksandrov struct hlist_head ip6_mc_router_list; 139d3d065c0SNikolay Aleksandrov struct timer_list ip6_mc_router_timer; 140d3d065c0SNikolay Aleksandrov struct bridge_mcast_other_query ip6_other_query; 141d3d065c0SNikolay Aleksandrov struct bridge_mcast_own_query ip6_own_query; 142d3d065c0SNikolay Aleksandrov struct bridge_mcast_querier ip6_querier; 143d3d065c0SNikolay Aleksandrov #endif /* IS_ENABLED(CONFIG_IPV6) */ 144d3d065c0SNikolay Aleksandrov #endif /* CONFIG_BRIDGE_IGMP_SNOOPING */ 145d3d065c0SNikolay Aleksandrov }; 146d3d065c0SNikolay Aleksandrov 147efa5356bSRoopa Prabhu struct br_tunnel_info { 148efa5356bSRoopa Prabhu __be64 tunnel_id; 14958e20717SNikolay Aleksandrov struct metadata_dst __rcu *tunnel_dst; 150efa5356bSRoopa Prabhu }; 151efa5356bSRoopa Prabhu 1529d332e69SNikolay Aleksandrov /* private vlan flags */ 1539d332e69SNikolay Aleksandrov enum { 1549d332e69SNikolay Aleksandrov BR_VLFLAG_PER_PORT_STATS = BIT(0), 15527973793SIdo Schimmel BR_VLFLAG_ADDED_BY_SWITCHDEV = BIT(1), 1567b54aaafSNikolay Aleksandrov BR_VLFLAG_MCAST_ENABLED = BIT(2), 1577b54aaafSNikolay Aleksandrov BR_VLFLAG_GLOBAL_MCAST_ENABLED = BIT(3), 1589d332e69SNikolay Aleksandrov }; 1599d332e69SNikolay Aleksandrov 1602594e906SNikolay Aleksandrov /** 1612594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 1622594e906SNikolay Aleksandrov * 1632594e906SNikolay Aleksandrov * @vnode: rhashtable member 1642594e906SNikolay Aleksandrov * @vid: VLAN id 1652594e906SNikolay Aleksandrov * @flags: bridge vlan flags 1669d332e69SNikolay Aleksandrov * @priv_flags: private (in-kernel) bridge vlan flags 167a580c76dSNikolay Aleksandrov * @state: STP state (e.g. blocking, learning, forwarding) 1686dada9b1SNikolay Aleksandrov * @stats: per-cpu VLAN statistics 1692594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 1702594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 1712594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 1722594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 1732594e906SNikolay Aleksandrov * for this VLAN entry 174613d61dbSNikolay Aleksandrov * @br_mcast_ctx: if MASTER flag set, this is the global vlan multicast context 175613d61dbSNikolay Aleksandrov * @port_mcast_ctx: if MASTER flag unset, this is the per-port/vlan multicast 176613d61dbSNikolay Aleksandrov * context 1772594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 1782594e906SNikolay Aleksandrov * @rcu: used for entry destruction 1792594e906SNikolay Aleksandrov * 1802594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 1812594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 1822594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 1832594e906SNikolay Aleksandrov * the entry flags that are set. 1842594e906SNikolay Aleksandrov */ 1852594e906SNikolay Aleksandrov struct net_bridge_vlan { 1862594e906SNikolay Aleksandrov struct rhash_head vnode; 187efa5356bSRoopa Prabhu struct rhash_head tnode; 1882594e906SNikolay Aleksandrov u16 vid; 1892594e906SNikolay Aleksandrov u16 flags; 1909d332e69SNikolay Aleksandrov u16 priv_flags; 191a580c76dSNikolay Aleksandrov u8 state; 192281cc284SHeiner Kallweit struct pcpu_sw_netstats __percpu *stats; 193243a2e63SVlad Yasevich union { 194243a2e63SVlad Yasevich struct net_bridge *br; 1952594e906SNikolay Aleksandrov struct net_bridge_port *port; 1962594e906SNikolay Aleksandrov }; 1972594e906SNikolay Aleksandrov union { 19825127759SReshetova, Elena refcount_t refcnt; 1992594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 2002594e906SNikolay Aleksandrov }; 201efa5356bSRoopa Prabhu 202efa5356bSRoopa Prabhu struct br_tunnel_info tinfo; 203efa5356bSRoopa Prabhu 204613d61dbSNikolay Aleksandrov union { 205613d61dbSNikolay Aleksandrov struct net_bridge_mcast br_mcast_ctx; 206613d61dbSNikolay Aleksandrov struct net_bridge_mcast_port port_mcast_ctx; 207613d61dbSNikolay Aleksandrov }; 208613d61dbSNikolay Aleksandrov 2092594e906SNikolay Aleksandrov struct list_head vlist; 2102594e906SNikolay Aleksandrov 211243a2e63SVlad Yasevich struct rcu_head rcu; 2122594e906SNikolay Aleksandrov }; 2132594e906SNikolay Aleksandrov 2142594e906SNikolay Aleksandrov /** 2152594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 2162594e906SNikolay Aleksandrov * 2172594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 2182594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 2192594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 22077751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 221a580c76dSNikolay Aleksandrov * @pvid_state: PVID's STP state (e.g. forwarding, learning, blocking) 2222594e906SNikolay Aleksandrov * 2232594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 2242594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 2252594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 2262594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 2272594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 2282594e906SNikolay Aleksandrov */ 2292594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 2302594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 231efa5356bSRoopa Prabhu struct rhashtable tunnel_hash; 2322594e906SNikolay Aleksandrov struct list_head vlan_list; 2336cbdceebSVlad Yasevich u16 num_vlans; 23477751ee8SNikolay Aleksandrov u16 pvid; 235a580c76dSNikolay Aleksandrov u8 pvid_state; 236243a2e63SVlad Yasevich }; 237243a2e63SVlad Yasevich 2386869c3b0SNikolay Aleksandrov /* bridge fdb flags */ 2396869c3b0SNikolay Aleksandrov enum { 2406869c3b0SNikolay Aleksandrov BR_FDB_LOCAL, 24129e63fffSNikolay Aleksandrov BR_FDB_STATIC, 242e0458d9aSNikolay Aleksandrov BR_FDB_STICKY, 243ac3ca6afSNikolay Aleksandrov BR_FDB_ADDED_BY_USER, 244b5cd9f7cSNikolay Aleksandrov BR_FDB_ADDED_BY_EXT_LEARN, 245d38c6e3dSNikolay Aleksandrov BR_FDB_OFFLOADED, 24631cbc39bSNikolay Aleksandrov BR_FDB_NOTIFY, 24731cbc39bSNikolay Aleksandrov BR_FDB_NOTIFY_INACTIVE 2486869c3b0SNikolay Aleksandrov }; 2496869c3b0SNikolay Aleksandrov 250eb793583SNikolay Aleksandrov struct net_bridge_fdb_key { 251eb793583SNikolay Aleksandrov mac_addr addr; 252eb793583SNikolay Aleksandrov u16 vlan_id; 253eb793583SNikolay Aleksandrov }; 254eb793583SNikolay Aleksandrov 2551214628cSNikolay Aleksandrov struct net_bridge_fdb_entry { 256eb793583SNikolay Aleksandrov struct rhash_head rhnode; 2571da177e4SLinus Torvalds struct net_bridge_port *dst; 2581da177e4SLinus Torvalds 259eb793583SNikolay Aleksandrov struct net_bridge_fdb_key key; 260eb793583SNikolay Aleksandrov struct hlist_node fdb_node; 2616869c3b0SNikolay Aleksandrov unsigned long flags; 2621214628cSNikolay Aleksandrov 2631214628cSNikolay Aleksandrov /* write-heavy members should not affect lookups */ 2641214628cSNikolay Aleksandrov unsigned long updated ____cacheline_aligned_in_smp; 2651214628cSNikolay Aleksandrov unsigned long used; 2661214628cSNikolay Aleksandrov 267b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 2681da177e4SLinus Torvalds }; 2691da177e4SLinus Torvalds 2709d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 2719d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 2723247b272SNikolay Aleksandrov #define MDB_PG_FLAGS_FAST_LEAVE BIT(2) 2738266a049SNikolay Aleksandrov #define MDB_PG_FLAGS_STAR_EXCL BIT(3) 2749116ffbfSNikolay Aleksandrov #define MDB_PG_FLAGS_BLOCKED BIT(4) 2759d06b6d8SElad Raz 2768b671779SNikolay Aleksandrov #define PG_SRC_ENT_LIMIT 32 2778b671779SNikolay Aleksandrov 2788b671779SNikolay Aleksandrov #define BR_SGRP_F_DELETE BIT(0) 2798b671779SNikolay Aleksandrov #define BR_SGRP_F_SEND BIT(1) 280b0812368SNikolay Aleksandrov #define BR_SGRP_F_INSTALLED BIT(2) 2818b671779SNikolay Aleksandrov 282e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc { 283e12cec65SNikolay Aleksandrov struct hlist_node gc_node; 284e12cec65SNikolay Aleksandrov void (*destroy)(struct net_bridge_mcast_gc *gc); 285e12cec65SNikolay Aleksandrov }; 286e12cec65SNikolay Aleksandrov 2878b671779SNikolay Aleksandrov struct net_bridge_group_src { 2888b671779SNikolay Aleksandrov struct hlist_node node; 2898b671779SNikolay Aleksandrov 2908b671779SNikolay Aleksandrov struct br_ip addr; 2918b671779SNikolay Aleksandrov struct net_bridge_port_group *pg; 2928b671779SNikolay Aleksandrov u8 flags; 293438ef2d0SNikolay Aleksandrov u8 src_query_rexmit_cnt; 2948b671779SNikolay Aleksandrov struct timer_list timer; 2958b671779SNikolay Aleksandrov 2968b671779SNikolay Aleksandrov struct net_bridge *br; 297e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2988b671779SNikolay Aleksandrov struct rcu_head rcu; 2998b671779SNikolay Aleksandrov }; 3008b671779SNikolay Aleksandrov 301085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key { 302eb1d1641SHerbert Xu struct net_bridge_port *port; 3038ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 304085b53c8SNikolay Aleksandrov }; 305085b53c8SNikolay Aleksandrov 306085b53c8SNikolay Aleksandrov struct net_bridge_port_group { 307085b53c8SNikolay Aleksandrov struct net_bridge_port_group __rcu *next; 308085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key key; 309206e7323SThomas Martitz unsigned char eth_addr[ETH_ALEN] __aligned(2); 3109d06b6d8SElad Raz unsigned char flags; 3118b671779SNikolay Aleksandrov unsigned char filter_mode; 31242c11ccfSNikolay Aleksandrov unsigned char grp_query_rexmit_cnt; 3138f8cb77eSNikolay Aleksandrov unsigned char rt_protocol; 3146ec0d0eeSNikolay Aleksandrov 3158b671779SNikolay Aleksandrov struct hlist_head src_list; 3168b671779SNikolay Aleksandrov unsigned int src_ents; 3176ec0d0eeSNikolay Aleksandrov struct timer_list timer; 31842c11ccfSNikolay Aleksandrov struct timer_list rexmit_timer; 3196ec0d0eeSNikolay Aleksandrov struct hlist_node mglist; 3208f07b831SNikolay Aleksandrov struct rb_root eht_set_tree; 3218f07b831SNikolay Aleksandrov struct rb_root eht_host_tree; 3226ec0d0eeSNikolay Aleksandrov 323085b53c8SNikolay Aleksandrov struct rhash_head rhnode; 324e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 3256ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 326eb1d1641SHerbert Xu }; 327eb1d1641SHerbert Xu 3281c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 32919e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 330eb1d1641SHerbert Xu struct net_bridge *br; 331e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 3328ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 333ff0fd34eSAndrew Lunn bool host_joined; 3346ec0d0eeSNikolay Aleksandrov 3356ec0d0eeSNikolay Aleksandrov struct timer_list timer; 33619e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 3376ec0d0eeSNikolay Aleksandrov 338e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 3396ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 340eb1d1641SHerbert Xu }; 341eb1d1641SHerbert Xu 3421f90c7f3SNikolay Aleksandrov struct net_bridge_port { 3431da177e4SLinus Torvalds struct net_bridge *br; 3441da177e4SLinus Torvalds struct net_device *dev; 3451da177e4SLinus Torvalds struct list_head list; 3461da177e4SLinus Torvalds 3471f90c7f3SNikolay Aleksandrov unsigned long flags; 3481f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3491f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3501f90c7f3SNikolay Aleksandrov #endif 3512756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 3521f90c7f3SNikolay Aleksandrov 3531da177e4SLinus Torvalds /* STP */ 3541da177e4SLinus Torvalds u8 priority; 3551da177e4SLinus Torvalds u8 state; 3561da177e4SLinus Torvalds u16 port_no; 3571da177e4SLinus Torvalds unsigned char topology_change_ack; 3581da177e4SLinus Torvalds unsigned char config_pending; 3591da177e4SLinus Torvalds port_id port_id; 3601da177e4SLinus Torvalds port_id designated_port; 3611da177e4SLinus Torvalds bridge_id designated_root; 3621da177e4SLinus Torvalds bridge_id designated_bridge; 3631da177e4SLinus Torvalds u32 path_cost; 3641da177e4SLinus Torvalds u32 designated_cost; 3650c03150eSstephen hemminger unsigned long designated_age; 3661da177e4SLinus Torvalds 3671da177e4SLinus Torvalds struct timer_list forward_delay_timer; 3681da177e4SLinus Torvalds struct timer_list hold_timer; 3691da177e4SLinus Torvalds struct timer_list message_age_timer; 3701da177e4SLinus Torvalds struct kobject kobj; 3711da177e4SLinus Torvalds struct rcu_head rcu; 3723982d3d2SFischer, Anna 3739632233eSNikolay Aleksandrov struct net_bridge_mcast_port multicast_ctx; 3749632233eSNikolay Aleksandrov 375eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 3769632233eSNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 3779632233eSNikolay Aleksandrov 37889268b05SNikolay Aleksandrov u32 multicast_eht_hosts_limit; 37989268b05SNikolay Aleksandrov u32 multicast_eht_hosts_cnt; 380eb1d1641SHerbert Xu struct hlist_head mglist; 381eb1d1641SHerbert Xu #endif 382e0f43752SSimon Arlott 383e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 384e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 385e0f43752SSimon Arlott #endif 38691d2c34aSHerbert Xu 38791d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 38891d2c34aSHerbert Xu struct netpoll *np; 38991d2c34aSHerbert Xu #endif 3906bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 391f7cf972fSTobias Waldekranz /* Identifier used to group ports that share the same switchdev 392f7cf972fSTobias Waldekranz * hardware domain. 393f7cf972fSTobias Waldekranz */ 394f7cf972fSTobias Waldekranz int hwdom; 395*2f5dc00fSVladimir Oltean int offload_count; 396*2f5dc00fSVladimir Oltean struct netdev_phys_item_id ppid; 3976bc506b4SIdo Schimmel #endif 3985af48b59SNikolay Aleksandrov u16 group_fwd_mask; 3992756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 400de179966SVivien Didelot 401de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 4021da177e4SLinus Torvalds }; 4031da177e4SLinus Torvalds 404705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 405705e0deaSTyler Hicks 406e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 407f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 408e028e4b8SVlad Yasevich 409b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 410b5ed54e9Sstephen hemminger { 411716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 412b5ed54e9Sstephen hemminger } 413b5ed54e9Sstephen hemminger 4141fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 415b5ed54e9Sstephen hemminger { 41635f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 417ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 418b5ed54e9Sstephen hemminger } 419b5ed54e9Sstephen hemminger 4200baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 4210baa10ffSArkadi Sharshevsky { 42235f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 4230baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 4240baa10ffSArkadi Sharshevsky } 4250baa10ffSArkadi Sharshevsky 426ae75767eSNikolay Aleksandrov enum net_bridge_opts { 427ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 428ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 4298df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 4308df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 4318df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 432be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 43313cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 434675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 435675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 436675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 437675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 438c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 4393341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 4409163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 44170e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 4429c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 443f4b7002aSNikolay Aleksandrov BROPT_MCAST_VLAN_SNOOPING_ENABLED, 444ae75767eSNikolay Aleksandrov }; 445ae75767eSNikolay Aleksandrov 4461f90c7f3SNikolay Aleksandrov struct net_bridge { 4471da177e4SLinus Torvalds spinlock_t lock; 4481f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 44990c628ddSHenrik Bjoernlund struct hlist_head frame_type_list; 4501da177e4SLinus Torvalds struct net_device *dev; 451ae75767eSNikolay Aleksandrov unsigned long options; 4521f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 4531f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 4541f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 4551f90c7f3SNikolay Aleksandrov u16 default_pvid; 4561f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 4571f90c7f3SNikolay Aleksandrov #endif 4581f90c7f3SNikolay Aleksandrov 459eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 46090c628ddSHenrik Bjoernlund struct list_head port_list; 46134666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 462efb6de9bSBernhard Thaler union { 4634adf0af6SSimon Wunderlich struct rtable fake_rtable; 464efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 465efb6de9bSBernhard Thaler }; 4664adf0af6SSimon Wunderlich #endif 467515853ccSstephen hemminger u16 group_fwd_mask; 468f2808d22SToshiaki Makita u16 group_fwd_mask_required; 469515853ccSstephen hemminger 4701da177e4SLinus Torvalds /* STP */ 4711da177e4SLinus Torvalds bridge_id designated_root; 4721da177e4SLinus Torvalds bridge_id bridge_id; 4731f90c7f3SNikolay Aleksandrov unsigned char topology_change; 4741f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 4751f90c7f3SNikolay Aleksandrov u16 root_port; 4761da177e4SLinus Torvalds unsigned long max_age; 4771da177e4SLinus Torvalds unsigned long hello_time; 4781da177e4SLinus Torvalds unsigned long forward_delay; 4791da177e4SLinus Torvalds unsigned long ageing_time; 48034d8acd8SVivien Didelot unsigned long bridge_max_age; 4811da177e4SLinus Torvalds unsigned long bridge_hello_time; 4821da177e4SLinus Torvalds unsigned long bridge_forward_delay; 48334d8acd8SVivien Didelot unsigned long bridge_ageing_time; 48435750b0bSNikolay Aleksandrov u32 root_path_cost; 4851da177e4SLinus Torvalds 486fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 4879cde0708SStephen Hemminger 4889cde0708SStephen Hemminger enum { 4899cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 4909cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 4919cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 4929cde0708SStephen Hemminger } stp_enabled; 4939cde0708SStephen Hemminger 494d3d065c0SNikolay Aleksandrov struct net_bridge_mcast multicast_ctx; 495d3d065c0SNikolay Aleksandrov 496eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 497d3d065c0SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 498eb1d1641SHerbert Xu 499eb1d1641SHerbert Xu u32 hash_max; 500eb1d1641SHerbert Xu 50135750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 502eb1d1641SHerbert Xu 50319e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 504085b53c8SNikolay Aleksandrov struct rhashtable sg_port_tbl; 50519e3a9c9SNikolay Aleksandrov 506e12cec65SNikolay Aleksandrov struct hlist_head mcast_gc_list; 50719e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 508eb1d1641SHerbert Xu 509e12cec65SNikolay Aleksandrov struct work_struct mcast_gc_work; 510eb1d1641SHerbert Xu #endif 511eb1d1641SHerbert Xu 5121da177e4SLinus Torvalds struct timer_list hello_timer; 5131da177e4SLinus Torvalds struct timer_list tcn_timer; 5141da177e4SLinus Torvalds struct timer_list topology_change_timer; 515f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 51643b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 517e028e4b8SVlad Yasevich u32 auto_cnt; 5186bc506b4SIdo Schimmel 5196bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 520f7cf972fSTobias Waldekranz /* Counter used to make sure that hardware domains get unique 521f7cf972fSTobias Waldekranz * identifiers in case a bridge spans multiple switchdev instances. 522f7cf972fSTobias Waldekranz */ 523f7cf972fSTobias Waldekranz int last_hwdom; 52485826610STobias Waldekranz /* Bit mask of hardware domain numbers in use */ 52585826610STobias Waldekranz unsigned long busy_hwdoms; 5266bc506b4SIdo Schimmel #endif 527eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 5284b8d7d4cSHoratiu Vultur 5294b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 5300169b820SHoratiu Vultur struct hlist_head mrp_list; 5314b8d7d4cSHoratiu Vultur #endif 532f323aa54SHenrik Bjoernlund #if IS_ENABLED(CONFIG_BRIDGE_CFM) 533f323aa54SHenrik Bjoernlund struct hlist_head mep_list; 534f323aa54SHenrik Bjoernlund #endif 5351da177e4SLinus Torvalds }; 5361da177e4SLinus Torvalds 53768b7c895SHerbert Xu struct br_input_skb_cb { 53868b7c895SHerbert Xu struct net_device *brdev; 53993fdd47eSHerbert Xu 5403c171f49SPablo Neira Ayuso u16 frag_max_size; 54132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 542f12064d1SFlorian Westphal u8 igmp; 543f12064d1SFlorian Westphal u8 mrouters_only:1; 54432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 545f12064d1SFlorian Westphal u8 proxyarp_replied:1; 546f12064d1SFlorian Westphal u8 src_port_isolated:1; 54720adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 548f12064d1SFlorian Westphal u8 vlan_filtered:1; 54920adfa1aSVlad Yasevich #endif 550223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 551223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 552223fd0adSFlorian Westphal #endif 5536bc506b4SIdo Schimmel 5546bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 555f7cf972fSTobias Waldekranz /* The switchdev hardware domain from which this packet was received. 556f7cf972fSTobias Waldekranz * If skb->offload_fwd_mark was set, then this packet was already 557f7cf972fSTobias Waldekranz * forwarded by hardware to the other ports in the source hardware 558f7cf972fSTobias Waldekranz * domain, otherwise it wasn't. 559f7cf972fSTobias Waldekranz */ 560f7cf972fSTobias Waldekranz int src_hwdom; 5616bc506b4SIdo Schimmel #endif 56268b7c895SHerbert Xu }; 56368b7c895SHerbert Xu 56468b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 56568b7c895SHerbert Xu 56632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 56732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 56832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 56932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 57032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 57132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 57228a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 57328a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 57428a16c97Sstephen hemminger 57528a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 57628a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 57728a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 57828a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 57928a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 58028a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 58128a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 58228a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 58328a16c97Sstephen hemminger 58428a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 58528a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 58628a16c97Sstephen hemminger 5871da177e4SLinus Torvalds /* called under bridge lock */ 5881da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 5891da177e4SLinus Torvalds { 5901da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 5911da177e4SLinus Torvalds } 5921da177e4SLinus Torvalds 5932594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 5942594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 5952594e906SNikolay Aleksandrov { 5962594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 5972594e906SNikolay Aleksandrov } 5982594e906SNikolay Aleksandrov 5992594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 6002594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 6012594e906SNikolay Aleksandrov { 6022594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 6032594e906SNikolay Aleksandrov } 6042594e906SNikolay Aleksandrov 6056be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 6062594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 6072594e906SNikolay Aleksandrov { 6082594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 6092594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 6102594e906SNikolay Aleksandrov return true; 6112594e906SNikolay Aleksandrov else 6122594e906SNikolay Aleksandrov return false; 6132594e906SNikolay Aleksandrov } 6142594e906SNikolay Aleksandrov 6152594e906SNikolay Aleksandrov return true; 6162594e906SNikolay Aleksandrov } 6172594e906SNikolay Aleksandrov 6185d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 6195d1fcaf3SNikolay Aleksandrov { 6205d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 6215d1fcaf3SNikolay Aleksandrov } 6225d1fcaf3SNikolay Aleksandrov 6238f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 6245a46facbSNikolay Aleksandrov { 6258f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 6268f4cc940SNikolay Aleksandrov 6278f4cc940SNikolay Aleksandrov if (!ret) 6288f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 6298f4cc940SNikolay Aleksandrov 6308f4cc940SNikolay Aleksandrov return ret; 6315a46facbSNikolay Aleksandrov } 6325a46facbSNikolay Aleksandrov 6335a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 6348f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 6358f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 6365a46facbSNikolay Aleksandrov { 6375a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 6388f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 6398f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 6405a46facbSNikolay Aleksandrov return false; 6418f4cc940SNikolay Aleksandrov } 6425a46facbSNikolay Aleksandrov 6435a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 6445a46facbSNikolay Aleksandrov * - it has range start flag 6455a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 6465a46facbSNikolay Aleksandrov */ 6475a46facbSNikolay Aleksandrov if (last) { 6488f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 6498f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 6505a46facbSNikolay Aleksandrov return false; 6518f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 6528f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 6538f4cc940SNikolay Aleksandrov return false; 6548f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 6558f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 6568f4cc940SNikolay Aleksandrov return false; 6578f4cc940SNikolay Aleksandrov } 6588f4cc940SNikolay Aleksandrov } 6598f4cc940SNikolay Aleksandrov 6608f4cc940SNikolay Aleksandrov /* check for required range flags */ 6618f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 6628f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 6638f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 6645a46facbSNikolay Aleksandrov return false; 6655a46facbSNikolay Aleksandrov } 6665a46facbSNikolay Aleksandrov 6675a46facbSNikolay Aleksandrov return true; 6685a46facbSNikolay Aleksandrov } 6695a46facbSNikolay Aleksandrov 670f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 671f545923bSNikolay Aleksandrov { 672f545923bSNikolay Aleksandrov switch (cmd) { 673f545923bSNikolay Aleksandrov case RTM_SETLINK: 674f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 675f545923bSNikolay Aleksandrov case RTM_DELLINK: 676f545923bSNikolay Aleksandrov return RTM_DELVLAN; 677f545923bSNikolay Aleksandrov } 678f545923bSNikolay Aleksandrov 679f545923bSNikolay Aleksandrov return 0; 680f545923bSNikolay Aleksandrov } 681f545923bSNikolay Aleksandrov 682ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 683ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 684ae75767eSNikolay Aleksandrov { 685ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 686ae75767eSNikolay Aleksandrov } 687ae75767eSNikolay Aleksandrov 688a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 689a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 690a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 691a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 692a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 693a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 694a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 695a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 696ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 697ae75767eSNikolay Aleksandrov 6981da177e4SLinus Torvalds /* br_device.c */ 699348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 700348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 701348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 702cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 70391d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 70491d2c34aSHerbert Xu struct sk_buff *skb) 70591d2c34aSHerbert Xu { 706f78ed220SEric Dumazet netpoll_send_skb(p->np, skb); 70791d2c34aSHerbert Xu } 70891d2c34aSHerbert Xu 709a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 710348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 71191d2c34aSHerbert Xu #else 7129f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 71391d2c34aSHerbert Xu struct sk_buff *skb) 71491d2c34aSHerbert Xu { 71591d2c34aSHerbert Xu } 71691d2c34aSHerbert Xu 717a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 71891d2c34aSHerbert Xu { 71991d2c34aSHerbert Xu return 0; 72091d2c34aSHerbert Xu } 72191d2c34aSHerbert Xu 72291d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 72391d2c34aSHerbert Xu { 72491d2c34aSHerbert Xu } 725cfb478daSstephen hemminger #endif 7261da177e4SLinus Torvalds 7271da177e4SLinus Torvalds /* br_fdb.c */ 728348662a1SJoe Perches int br_fdb_init(void); 729348662a1SJoe Perches void br_fdb_fini(void); 730eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 731eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 732348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 733424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 734424bb9c9SToshiaki Makita const struct net_bridge_port *p, 735424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 736348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 737348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 738f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 739348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 7401ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 741bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 742bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 743bfd0aeacSNikolay Aleksandrov __u16 vid); 744348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 745348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 746348662a1SJoe Perches unsigned long off); 747348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 748348662a1SJoe Perches const unsigned char *addr, u16 vid); 749348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 750be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 75177162022SJohn Fastabend 752348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 753f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 754348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 75587b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 75687b0984eSPetr Machata struct netlink_ext_ack *extack); 757348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 758d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 75947674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 76047674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 76147674562SRoopa Prabhu struct netlink_ext_ack *extack); 7628db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 7638db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 7643aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 765161d82deSPetr Machata const unsigned char *addr, u16 vid, 766161d82deSPetr Machata bool swdev_notify); 7673aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 768161d82deSPetr Machata const unsigned char *addr, u16 vid, 769161d82deSPetr Machata bool swdev_notify); 7709fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 771e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 7721da177e4SLinus Torvalds 7731da177e4SLinus Torvalds /* br_forward.c */ 7748addd5e7SNikolay Aleksandrov enum br_pkt_type { 7758addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 7768addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 7778addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 7788addd5e7SNikolay Aleksandrov }; 7790c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 780b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 78137b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 7820c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 78337b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 7848addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 7851da177e4SLinus Torvalds 7867d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 7877d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 7887d850abdSNikolay Aleksandrov const struct sk_buff *skb) 7897d850abdSNikolay Aleksandrov { 7907d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 7917d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 7927d850abdSNikolay Aleksandrov } 7937d850abdSNikolay Aleksandrov 7941da177e4SLinus Torvalds /* br_if.c */ 795faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 796348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 797348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 798ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 799ca752be0SDavid Ahern struct netlink_ext_ack *extack); 800348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 801804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 802348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 803c8f44affSMichał Mirosław netdev_features_t features); 804e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 8052796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 8062756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 8071da177e4SLinus Torvalds 8081da177e4SLinus Torvalds /* br_input.c */ 8090c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 8109eb8eff0SVladimir Oltean rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); 8111da177e4SLinus Torvalds 81290c628ddSHenrik Bjoernlund struct br_frame_type { 81390c628ddSHenrik Bjoernlund __be16 type; 81490c628ddSHenrik Bjoernlund int (*frame_handler)(struct net_bridge_port *port, 81590c628ddSHenrik Bjoernlund struct sk_buff *skb); 81690c628ddSHenrik Bjoernlund struct hlist_node list; 81790c628ddSHenrik Bjoernlund }; 81890c628ddSHenrik Bjoernlund 81990c628ddSHenrik Bjoernlund void br_add_frame(struct net_bridge *br, struct br_frame_type *ft); 82090c628ddSHenrik Bjoernlund void br_del_frame(struct net_bridge *br, struct br_frame_type *ft); 82190c628ddSHenrik Bjoernlund 822859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 823859828c0SJiri Pirko { 8249eb8eff0SVladimir Oltean return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); 825859828c0SJiri Pirko } 826859828c0SJiri Pirko 8274d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 8284d4fd361SPetr Machata { 8299eb8eff0SVladimir Oltean return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); 8304d4fd361SPetr Machata } 8314d4fd361SPetr Machata 832859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 833859828c0SJiri Pirko { 834859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 835859828c0SJiri Pirko } 836859828c0SJiri Pirko 8374d4fd361SPetr Machata static inline struct net_bridge_port * 8384d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 8394d4fd361SPetr Machata { 8404d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 8414d4fd361SPetr Machata } 8424d4fd361SPetr Machata 8431da177e4SLinus Torvalds /* br_ioctl.c */ 844348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 845348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 846348662a1SJoe Perches void __user *arg); 8471da177e4SLinus Torvalds 848eb1d1641SHerbert Xu /* br_multicast.c */ 849eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 850f4b7002aSNikolay Aleksandrov int br_multicast_rcv(struct net_bridge_mcast **brmctx, 851f4b7002aSNikolay Aleksandrov struct net_bridge_mcast_port **pmctx, 852f4b7002aSNikolay Aleksandrov struct net_bridge_vlan *vlan, 853fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 854adc47037SNikolay Aleksandrov struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge_mcast *brmctx, 855eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 8561080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 857348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 858348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 859348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 860348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 861851d0a73SJoseph Huang void br_multicast_join_snoopers(struct net_bridge *br); 862851d0a73SJoseph Huang void br_multicast_leave_snoopers(struct net_bridge *br); 863348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 864348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 865e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 866adc47037SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, struct sk_buff *skb, 867adc47037SNikolay Aleksandrov struct net_bridge_mcast *brmctx, 868adc47037SNikolay Aleksandrov bool local_rcv, bool local_orig); 869348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 870348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 871ae1ea84bSFlorian Fainelli int br_multicast_toggle(struct net_bridge *br, unsigned long val, 872ae1ea84bSFlorian Fainelli struct netlink_ext_ack *extack); 873348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 874348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 8755e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 876aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 877aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 878aa2ae3e7SNikolay Aleksandrov #endif 879348662a1SJoe Perches struct net_bridge_mdb_entry * 88019e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 881348662a1SJoe Perches struct net_bridge_mdb_entry * 88219e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 883348662a1SJoe Perches struct net_bridge_port_group * 884348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 885762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 8868b671779SNikolay Aleksandrov unsigned char flags, const unsigned char *src, 8878f8cb77eSNikolay Aleksandrov u8 filter_mode, u8 rt_protocol); 88819e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 88919e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 89081f19838SNikolay Aleksandrov void br_mdb_notify(struct net_device *dev, struct net_bridge_mdb_entry *mp, 89181f19838SNikolay Aleksandrov struct net_bridge_port_group *pg, int type); 8921e9ca456SNikolay Aleksandrov void br_rtr_notify(struct net_device *dev, struct net_bridge_mcast_port *pmctx, 893949f1e39SSatish Ashok int type); 894681590bdSNikolay Aleksandrov void br_multicast_del_pg(struct net_bridge_mdb_entry *mp, 895681590bdSNikolay Aleksandrov struct net_bridge_port_group *pg, 896681590bdSNikolay Aleksandrov struct net_bridge_port_group __rcu **pp); 897adc47037SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, 898adc47037SNikolay Aleksandrov const struct net_bridge_port *p, 899a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 9001080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 901b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 9021080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 9031080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 9041080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 90519e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 90619e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 90758d913a3SNikolay Aleksandrov void br_multicast_host_join(const struct net_bridge_mcast *brmctx, 90858d913a3SNikolay Aleksandrov struct net_bridge_mdb_entry *mp, bool notify); 9091bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 9108266a049SNikolay Aleksandrov void br_multicast_star_g_handle_mode(struct net_bridge_port_group *pg, 9118266a049SNikolay Aleksandrov u8 filter_mode); 9128266a049SNikolay Aleksandrov void br_multicast_sg_add_exclude_ports(struct net_bridge_mdb_entry *star_mp, 9138266a049SNikolay Aleksandrov struct net_bridge_port_group *sg); 914474ddb37SNikolay Aleksandrov struct net_bridge_group_src * 915474ddb37SNikolay Aleksandrov br_multicast_find_group_src(struct net_bridge_port_group *pg, struct br_ip *ip); 916d5a10222SNikolay Aleksandrov void br_multicast_del_group_src(struct net_bridge_group_src *src, 917d5a10222SNikolay Aleksandrov bool fastleave); 918613d61dbSNikolay Aleksandrov void br_multicast_ctx_init(struct net_bridge *br, 919613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 920613d61dbSNikolay Aleksandrov struct net_bridge_mcast *brmctx); 921613d61dbSNikolay Aleksandrov void br_multicast_ctx_deinit(struct net_bridge_mcast *brmctx); 922613d61dbSNikolay Aleksandrov void br_multicast_port_ctx_init(struct net_bridge_port *port, 923613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 924613d61dbSNikolay Aleksandrov struct net_bridge_mcast_port *pmctx); 925613d61dbSNikolay Aleksandrov void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx); 9267b54aaafSNikolay Aleksandrov void br_multicast_toggle_one_vlan(struct net_bridge_vlan *vlan, bool on); 927f4b7002aSNikolay Aleksandrov void br_multicast_toggle_vlan(struct net_bridge_vlan *vlan, bool on); 928f4b7002aSNikolay Aleksandrov int br_multicast_toggle_vlan_snooping(struct net_bridge *br, bool on, 929f4b7002aSNikolay Aleksandrov struct netlink_ext_ack *extack); 9309dee572cSNikolay Aleksandrov bool br_multicast_toggle_global_vlan(struct net_bridge_vlan *vlan, bool on); 93185b35269SSridhar Samudrala 932955062b0SNikolay Aleksandrov static inline bool br_group_is_l2(const struct br_ip *group) 933955062b0SNikolay Aleksandrov { 934955062b0SNikolay Aleksandrov return group->proto == 0; 935955062b0SNikolay Aleksandrov } 936955062b0SNikolay Aleksandrov 937cfd56754SCong Wang #define mlock_dereference(X, br) \ 938cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 939cfd56754SCong Wang 94044ebb081SLinus Lüssing static inline struct hlist_node * 941adc47037SNikolay Aleksandrov br_multicast_get_first_rport_node(struct net_bridge_mcast *brmctx, 942adc47037SNikolay Aleksandrov struct sk_buff *skb) 943d3d065c0SNikolay Aleksandrov { 944a3c02e76SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 945a3c02e76SLinus Lüssing if (skb->protocol == htons(ETH_P_IPV6)) 946d3d065c0SNikolay Aleksandrov return rcu_dereference(hlist_first_rcu(&brmctx->ip6_mc_router_list)); 947a3c02e76SLinus Lüssing #endif 948d3d065c0SNikolay Aleksandrov return rcu_dereference(hlist_first_rcu(&brmctx->ip4_mc_router_list)); 94944ebb081SLinus Lüssing } 95044ebb081SLinus Lüssing 95144ebb081SLinus Lüssing static inline struct net_bridge_port * 952d3d065c0SNikolay Aleksandrov br_multicast_rport_from_node_skb(struct hlist_node *rp, struct sk_buff *skb) 953d3d065c0SNikolay Aleksandrov { 9549632233eSNikolay Aleksandrov struct net_bridge_mcast_port *mctx; 9559632233eSNikolay Aleksandrov 956a3c02e76SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 957a3c02e76SLinus Lüssing if (skb->protocol == htons(ETH_P_IPV6)) 9589632233eSNikolay Aleksandrov mctx = hlist_entry_safe(rp, struct net_bridge_mcast_port, 9599632233eSNikolay Aleksandrov ip6_rlist); 9609632233eSNikolay Aleksandrov else 961a3c02e76SLinus Lüssing #endif 9629632233eSNikolay Aleksandrov mctx = hlist_entry_safe(rp, struct net_bridge_mcast_port, 9639632233eSNikolay Aleksandrov ip4_rlist); 9649632233eSNikolay Aleksandrov 9659632233eSNikolay Aleksandrov if (mctx) 9669632233eSNikolay Aleksandrov return mctx->port; 9679632233eSNikolay Aleksandrov else 9689632233eSNikolay Aleksandrov return NULL; 96944ebb081SLinus Lüssing } 97044ebb081SLinus Lüssing 971d3d065c0SNikolay Aleksandrov static inline bool br_ip4_multicast_is_router(struct net_bridge_mcast *brmctx) 97285b35269SSridhar Samudrala { 973d3d065c0SNikolay Aleksandrov return timer_pending(&brmctx->ip4_mc_router_timer); 9741a3065a2SLinus Lüssing } 9751a3065a2SLinus Lüssing 976d3d065c0SNikolay Aleksandrov static inline bool br_ip6_multicast_is_router(struct net_bridge_mcast *brmctx) 9771a3065a2SLinus Lüssing { 9781a3065a2SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 979d3d065c0SNikolay Aleksandrov return timer_pending(&brmctx->ip6_mc_router_timer); 9801a3065a2SLinus Lüssing #else 9811a3065a2SLinus Lüssing return false; 9821a3065a2SLinus Lüssing #endif 9831a3065a2SLinus Lüssing } 9841a3065a2SLinus Lüssing 9851a3065a2SLinus Lüssing static inline bool 986adc47037SNikolay Aleksandrov br_multicast_is_router(struct net_bridge_mcast *brmctx, struct sk_buff *skb) 9871a3065a2SLinus Lüssing { 988d3d065c0SNikolay Aleksandrov switch (brmctx->multicast_router) { 9891a3065a2SLinus Lüssing case MDB_RTR_TYPE_PERM: 9901a3065a2SLinus Lüssing return true; 9911a3065a2SLinus Lüssing case MDB_RTR_TYPE_TEMP_QUERY: 9921a3065a2SLinus Lüssing if (skb) { 9931a3065a2SLinus Lüssing if (skb->protocol == htons(ETH_P_IP)) 994d3d065c0SNikolay Aleksandrov return br_ip4_multicast_is_router(brmctx); 9951a3065a2SLinus Lüssing else if (skb->protocol == htons(ETH_P_IPV6)) 996d3d065c0SNikolay Aleksandrov return br_ip6_multicast_is_router(brmctx); 9971a3065a2SLinus Lüssing } else { 998d3d065c0SNikolay Aleksandrov return br_ip4_multicast_is_router(brmctx) || 999d3d065c0SNikolay Aleksandrov br_ip6_multicast_is_router(brmctx); 10001a3065a2SLinus Lüssing } 10011a3065a2SLinus Lüssing fallthrough; 10021a3065a2SLinus Lüssing default: 10031a3065a2SLinus Lüssing return false; 10041a3065a2SLinus Lüssing } 100585b35269SSridhar Samudrala } 1006b00589afSLinus Lüssing 1007cc0fdd80SLinus Lüssing static inline bool 1008adc47037SNikolay Aleksandrov __br_multicast_querier_exists(struct net_bridge_mcast *brmctx, 10090888d5f3Sdaniel struct bridge_mcast_other_query *querier, 10100888d5f3Sdaniel const bool is_ipv6) 1011b00589afSLinus Lüssing { 10120888d5f3Sdaniel bool own_querier_enabled; 10130888d5f3Sdaniel 1014adc47037SNikolay Aleksandrov if (br_opt_get(brmctx->br, BROPT_MULTICAST_QUERIER)) { 1015adc47037SNikolay Aleksandrov if (is_ipv6 && !br_opt_get(brmctx->br, BROPT_HAS_IPV6_ADDR)) 10160888d5f3Sdaniel own_querier_enabled = false; 10170888d5f3Sdaniel else 10180888d5f3Sdaniel own_querier_enabled = true; 10190888d5f3Sdaniel } else { 10200888d5f3Sdaniel own_querier_enabled = false; 10210888d5f3Sdaniel } 10220888d5f3Sdaniel 1023cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 10240888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 1025cc0fdd80SLinus Lüssing } 1026cc0fdd80SLinus Lüssing 1027adc47037SNikolay Aleksandrov static inline bool br_multicast_querier_exists(struct net_bridge_mcast *brmctx, 1028955062b0SNikolay Aleksandrov struct ethhdr *eth, 1029955062b0SNikolay Aleksandrov const struct net_bridge_mdb_entry *mdb) 1030cc0fdd80SLinus Lüssing { 1031cc0fdd80SLinus Lüssing switch (eth->h_proto) { 1032cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 1033adc47037SNikolay Aleksandrov return __br_multicast_querier_exists(brmctx, 1034adc47037SNikolay Aleksandrov &brmctx->ip4_other_query, false); 1035cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 1036cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 1037adc47037SNikolay Aleksandrov return __br_multicast_querier_exists(brmctx, 1038adc47037SNikolay Aleksandrov &brmctx->ip6_other_query, true); 1039cc0fdd80SLinus Lüssing #endif 1040cc0fdd80SLinus Lüssing default: 1041955062b0SNikolay Aleksandrov return !!mdb && br_group_is_l2(&mdb->addr); 1042cc0fdd80SLinus Lüssing } 1043b00589afSLinus Lüssing } 10441080ab95SNikolay Aleksandrov 104588d4bd18SNikolay Aleksandrov static inline bool br_multicast_is_star_g(const struct br_ip *ip) 104688d4bd18SNikolay Aleksandrov { 104788d4bd18SNikolay Aleksandrov switch (ip->proto) { 104888d4bd18SNikolay Aleksandrov case htons(ETH_P_IP): 104988d4bd18SNikolay Aleksandrov return ipv4_is_zeronet(ip->src.ip4); 105088d4bd18SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 105188d4bd18SNikolay Aleksandrov case htons(ETH_P_IPV6): 105288d4bd18SNikolay Aleksandrov return ipv6_addr_any(&ip->src.ip6); 105388d4bd18SNikolay Aleksandrov #endif 105488d4bd18SNikolay Aleksandrov default: 105588d4bd18SNikolay Aleksandrov return false; 105688d4bd18SNikolay Aleksandrov } 105788d4bd18SNikolay Aleksandrov } 105888d4bd18SNikolay Aleksandrov 1059adc47037SNikolay Aleksandrov static inline bool 1060adc47037SNikolay Aleksandrov br_multicast_should_handle_mode(const struct net_bridge_mcast *brmctx, 10618266a049SNikolay Aleksandrov __be16 proto) 10628266a049SNikolay Aleksandrov { 10638266a049SNikolay Aleksandrov switch (proto) { 10648266a049SNikolay Aleksandrov case htons(ETH_P_IP): 1065adc47037SNikolay Aleksandrov return !!(brmctx->multicast_igmp_version == 3); 10668266a049SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 10678266a049SNikolay Aleksandrov case htons(ETH_P_IPV6): 1068adc47037SNikolay Aleksandrov return !!(brmctx->multicast_mld_version == 2); 10698266a049SNikolay Aleksandrov #endif 10708266a049SNikolay Aleksandrov default: 10718266a049SNikolay Aleksandrov return false; 10728266a049SNikolay Aleksandrov } 10738266a049SNikolay Aleksandrov } 10748266a049SNikolay Aleksandrov 10751080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 10761080ab95SNikolay Aleksandrov { 10771080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 10781080ab95SNikolay Aleksandrov } 107942c11ccfSNikolay Aleksandrov 1080adc47037SNikolay Aleksandrov static inline unsigned long br_multicast_lmqt(const struct net_bridge_mcast *brmctx) 108142c11ccfSNikolay Aleksandrov { 1082adc47037SNikolay Aleksandrov return brmctx->multicast_last_member_interval * 1083adc47037SNikolay Aleksandrov brmctx->multicast_last_member_count; 108442c11ccfSNikolay Aleksandrov } 10850436862eSNikolay Aleksandrov 1086adc47037SNikolay Aleksandrov static inline unsigned long br_multicast_gmi(const struct net_bridge_mcast *brmctx) 10870436862eSNikolay Aleksandrov { 10880436862eSNikolay Aleksandrov /* use the RFC default of 2 for QRV */ 1089adc47037SNikolay Aleksandrov return 2 * brmctx->multicast_query_interval + 1090adc47037SNikolay Aleksandrov brmctx->multicast_query_response_interval; 10910436862eSNikolay Aleksandrov } 10927b54aaafSNikolay Aleksandrov 10937b54aaafSNikolay Aleksandrov static inline bool 10947b54aaafSNikolay Aleksandrov br_multicast_ctx_is_vlan(const struct net_bridge_mcast *brmctx) 10957b54aaafSNikolay Aleksandrov { 10967b54aaafSNikolay Aleksandrov return !!brmctx->vlan; 10977b54aaafSNikolay Aleksandrov } 10987b54aaafSNikolay Aleksandrov 10997b54aaafSNikolay Aleksandrov static inline bool 11007b54aaafSNikolay Aleksandrov br_multicast_port_ctx_is_vlan(const struct net_bridge_mcast_port *pmctx) 11017b54aaafSNikolay Aleksandrov { 11027b54aaafSNikolay Aleksandrov return !!pmctx->vlan; 11037b54aaafSNikolay Aleksandrov } 11047b54aaafSNikolay Aleksandrov 11057b54aaafSNikolay Aleksandrov static inline struct net_bridge_mcast * 11067b54aaafSNikolay Aleksandrov br_multicast_port_ctx_get_global(const struct net_bridge_mcast_port *pmctx) 11077b54aaafSNikolay Aleksandrov { 11087b54aaafSNikolay Aleksandrov if (!br_multicast_port_ctx_is_vlan(pmctx)) 11097b54aaafSNikolay Aleksandrov return &pmctx->port->br->multicast_ctx; 11107b54aaafSNikolay Aleksandrov else 11117b54aaafSNikolay Aleksandrov return &pmctx->vlan->brvlan->br_mcast_ctx; 11127b54aaafSNikolay Aleksandrov } 11137b54aaafSNikolay Aleksandrov 11147b54aaafSNikolay Aleksandrov static inline bool 11157b54aaafSNikolay Aleksandrov br_multicast_ctx_vlan_global_disabled(const struct net_bridge_mcast *brmctx) 11167b54aaafSNikolay Aleksandrov { 1117f4b7002aSNikolay Aleksandrov return br_opt_get(brmctx->br, BROPT_MCAST_VLAN_SNOOPING_ENABLED) && 1118f4b7002aSNikolay Aleksandrov br_multicast_ctx_is_vlan(brmctx) && 11197b54aaafSNikolay Aleksandrov !(brmctx->vlan->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED); 11207b54aaafSNikolay Aleksandrov } 11217b54aaafSNikolay Aleksandrov 11227b54aaafSNikolay Aleksandrov static inline bool 11237b54aaafSNikolay Aleksandrov br_multicast_ctx_vlan_disabled(const struct net_bridge_mcast *brmctx) 11247b54aaafSNikolay Aleksandrov { 11257b54aaafSNikolay Aleksandrov return br_multicast_ctx_is_vlan(brmctx) && 11267b54aaafSNikolay Aleksandrov !(brmctx->vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED); 11277b54aaafSNikolay Aleksandrov } 11287b54aaafSNikolay Aleksandrov 11297b54aaafSNikolay Aleksandrov static inline bool 11307b54aaafSNikolay Aleksandrov br_multicast_port_ctx_vlan_disabled(const struct net_bridge_mcast_port *pmctx) 11317b54aaafSNikolay Aleksandrov { 11327b54aaafSNikolay Aleksandrov return br_multicast_port_ctx_is_vlan(pmctx) && 11337b54aaafSNikolay Aleksandrov !(pmctx->vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED); 11347b54aaafSNikolay Aleksandrov } 11354cdd0d10SNikolay Aleksandrov 11364cdd0d10SNikolay Aleksandrov static inline bool 11374cdd0d10SNikolay Aleksandrov br_multicast_port_ctx_state_disabled(const struct net_bridge_mcast_port *pmctx) 11384cdd0d10SNikolay Aleksandrov { 11394cdd0d10SNikolay Aleksandrov return pmctx->port->state == BR_STATE_DISABLED || 11404cdd0d10SNikolay Aleksandrov (br_multicast_port_ctx_is_vlan(pmctx) && 11414cdd0d10SNikolay Aleksandrov (br_multicast_port_ctx_vlan_disabled(pmctx) || 11424cdd0d10SNikolay Aleksandrov pmctx->vlan->state == BR_STATE_DISABLED)); 11434cdd0d10SNikolay Aleksandrov } 11444cdd0d10SNikolay Aleksandrov 11454cdd0d10SNikolay Aleksandrov static inline bool 11464cdd0d10SNikolay Aleksandrov br_multicast_port_ctx_state_stopped(const struct net_bridge_mcast_port *pmctx) 11474cdd0d10SNikolay Aleksandrov { 11484cdd0d10SNikolay Aleksandrov return br_multicast_port_ctx_state_disabled(pmctx) || 11494cdd0d10SNikolay Aleksandrov pmctx->port->state == BR_STATE_BLOCKING || 11504cdd0d10SNikolay Aleksandrov (br_multicast_port_ctx_is_vlan(pmctx) && 11514cdd0d10SNikolay Aleksandrov pmctx->vlan->state == BR_STATE_BLOCKING); 11524cdd0d10SNikolay Aleksandrov } 1153eb1d1641SHerbert Xu #else 1154f4b7002aSNikolay Aleksandrov static inline int br_multicast_rcv(struct net_bridge_mcast **brmctx, 1155f4b7002aSNikolay Aleksandrov struct net_bridge_mcast_port **pmctx, 1156f4b7002aSNikolay Aleksandrov struct net_bridge_vlan *vlan, 115706499098SVlad Yasevich struct sk_buff *skb, 115806499098SVlad Yasevich u16 vid) 1159eb1d1641SHerbert Xu { 1160eb1d1641SHerbert Xu return 0; 1161eb1d1641SHerbert Xu } 1162eb1d1641SHerbert Xu 1163adc47037SNikolay Aleksandrov static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge_mcast *brmctx, 1164fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 1165eb1d1641SHerbert Xu { 1166eb1d1641SHerbert Xu return NULL; 1167eb1d1641SHerbert Xu } 1168eb1d1641SHerbert Xu 11691080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 1170eb1d1641SHerbert Xu { 11711080ab95SNikolay Aleksandrov return 0; 1172eb1d1641SHerbert Xu } 1173eb1d1641SHerbert Xu 1174eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 1175eb1d1641SHerbert Xu { 1176eb1d1641SHerbert Xu } 1177eb1d1641SHerbert Xu 1178eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 1179eb1d1641SHerbert Xu { 1180eb1d1641SHerbert Xu } 1181eb1d1641SHerbert Xu 1182eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 1183eb1d1641SHerbert Xu { 1184eb1d1641SHerbert Xu } 1185eb1d1641SHerbert Xu 1186eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 1187eb1d1641SHerbert Xu { 1188eb1d1641SHerbert Xu } 1189eb1d1641SHerbert Xu 1190851d0a73SJoseph Huang static inline void br_multicast_join_snoopers(struct net_bridge *br) 1191851d0a73SJoseph Huang { 1192851d0a73SJoseph Huang } 1193851d0a73SJoseph Huang 1194851d0a73SJoseph Huang static inline void br_multicast_leave_snoopers(struct net_bridge *br) 1195851d0a73SJoseph Huang { 1196851d0a73SJoseph Huang } 1197851d0a73SJoseph Huang 1198eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 1199eb1d1641SHerbert Xu { 1200eb1d1641SHerbert Xu } 1201eb1d1641SHerbert Xu 1202eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 1203eb1d1641SHerbert Xu { 1204eb1d1641SHerbert Xu } 12055cb5e947SHerbert Xu 1206a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 1207a7ce45a7SNikolay Aleksandrov { 1208a7ce45a7SNikolay Aleksandrov } 1209a7ce45a7SNikolay Aleksandrov 121037b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 121137b090e6SNikolay Aleksandrov struct sk_buff *skb, 1212adc47037SNikolay Aleksandrov struct net_bridge_mcast *brmctx, 121337b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 12145cb5e947SHerbert Xu { 12155cb5e947SHerbert Xu } 12165cb5e947SHerbert Xu 1217adc47037SNikolay Aleksandrov static inline bool br_multicast_is_router(struct net_bridge_mcast *brmctx, 1218bbc6f2ccSNikolay Aleksandrov struct sk_buff *skb) 1219eb1d1641SHerbert Xu { 122003aaa9e2SGustavo A. R. Silva return false; 1221eb1d1641SHerbert Xu } 122237b090e6SNikolay Aleksandrov 1223adc47037SNikolay Aleksandrov static inline bool br_multicast_querier_exists(struct net_bridge_mcast *brmctx, 1224c43fd36fSVladimir Oltean struct ethhdr *eth, 1225c43fd36fSVladimir Oltean const struct net_bridge_mdb_entry *mdb) 1226b00589afSLinus Lüssing { 1227b00589afSLinus Lüssing return false; 1228b00589afSLinus Lüssing } 122937b090e6SNikolay Aleksandrov 1230fdb184d1SRami Rosen static inline void br_mdb_init(void) 1231fdb184d1SRami Rosen { 1232fdb184d1SRami Rosen } 123337b090e6SNikolay Aleksandrov 1234fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 1235fdb184d1SRami Rosen { 1236fdb184d1SRami Rosen } 12371080ab95SNikolay Aleksandrov 123819e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 123919e3a9c9SNikolay Aleksandrov { 124019e3a9c9SNikolay Aleksandrov return 0; 124119e3a9c9SNikolay Aleksandrov } 124219e3a9c9SNikolay Aleksandrov 124319e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 124419e3a9c9SNikolay Aleksandrov { 124519e3a9c9SNikolay Aleksandrov } 124619e3a9c9SNikolay Aleksandrov 12471080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 12481080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 1249a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 1250a65056ecSNikolay Aleksandrov u8 type, u8 dir) 12511080ab95SNikolay Aleksandrov { 12521080ab95SNikolay Aleksandrov } 12531080ab95SNikolay Aleksandrov 12541080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 12551080ab95SNikolay Aleksandrov { 12561080ab95SNikolay Aleksandrov return 0; 12571080ab95SNikolay Aleksandrov } 12581080ab95SNikolay Aleksandrov 1259b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 1260b6fe0440SIdo Schimmel { 1261b6fe0440SIdo Schimmel } 1262b6fe0440SIdo Schimmel 12631080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 12641080ab95SNikolay Aleksandrov { 12651080ab95SNikolay Aleksandrov return 0; 12661080ab95SNikolay Aleksandrov } 1267613d61dbSNikolay Aleksandrov 1268613d61dbSNikolay Aleksandrov static inline void br_multicast_ctx_init(struct net_bridge *br, 1269613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 1270613d61dbSNikolay Aleksandrov struct net_bridge_mcast *brmctx) 1271613d61dbSNikolay Aleksandrov { 1272613d61dbSNikolay Aleksandrov } 1273613d61dbSNikolay Aleksandrov 1274613d61dbSNikolay Aleksandrov static inline void br_multicast_ctx_deinit(struct net_bridge_mcast *brmctx) 1275613d61dbSNikolay Aleksandrov { 1276613d61dbSNikolay Aleksandrov } 1277613d61dbSNikolay Aleksandrov 1278613d61dbSNikolay Aleksandrov static inline void br_multicast_port_ctx_init(struct net_bridge_port *port, 1279613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 1280613d61dbSNikolay Aleksandrov struct net_bridge_mcast_port *pmctx) 1281613d61dbSNikolay Aleksandrov { 1282613d61dbSNikolay Aleksandrov } 1283613d61dbSNikolay Aleksandrov 1284613d61dbSNikolay Aleksandrov static inline void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx) 1285613d61dbSNikolay Aleksandrov { 1286613d61dbSNikolay Aleksandrov } 12877b54aaafSNikolay Aleksandrov 12887b54aaafSNikolay Aleksandrov static inline void br_multicast_toggle_one_vlan(struct net_bridge_vlan *vlan, 12897b54aaafSNikolay Aleksandrov bool on) 12907b54aaafSNikolay Aleksandrov { 12917b54aaafSNikolay Aleksandrov } 1292f4b7002aSNikolay Aleksandrov 1293f4b7002aSNikolay Aleksandrov static inline void br_multicast_toggle_vlan(struct net_bridge_vlan *vlan, 1294f4b7002aSNikolay Aleksandrov bool on) 1295f4b7002aSNikolay Aleksandrov { 1296f4b7002aSNikolay Aleksandrov } 1297f4b7002aSNikolay Aleksandrov 1298f4b7002aSNikolay Aleksandrov static inline int br_multicast_toggle_vlan_snooping(struct net_bridge *br, 1299f4b7002aSNikolay Aleksandrov bool on, 1300f4b7002aSNikolay Aleksandrov struct netlink_ext_ack *extack) 1301f4b7002aSNikolay Aleksandrov { 1302f4b7002aSNikolay Aleksandrov return -EOPNOTSUPP; 1303f4b7002aSNikolay Aleksandrov } 13049dee572cSNikolay Aleksandrov 13059dee572cSNikolay Aleksandrov static inline bool br_multicast_toggle_global_vlan(struct net_bridge_vlan *vlan, 13069dee572cSNikolay Aleksandrov bool on) 13079dee572cSNikolay Aleksandrov { 13089dee572cSNikolay Aleksandrov return false; 13099dee572cSNikolay Aleksandrov } 131085b35269SSridhar Samudrala #endif 1311eb1d1641SHerbert Xu 1312243a2e63SVlad Yasevich /* br_vlan.c */ 1313243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 131477751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 131577751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 1316f4b7002aSNikolay Aleksandrov u16 *vid, u8 *state, 1317f4b7002aSNikolay Aleksandrov struct net_bridge_vlan **vlan); 131877751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 131985f46c6bSVlad Yasevich const struct sk_buff *skb); 1320e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 1321348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 132211538d03SRoopa Prabhu const struct net_bridge_port *port, 13232594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 132478851988SVlad Yasevich struct sk_buff *skb); 1325f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1326169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1327348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 1328348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 13292594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 1330204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 13319e781401SVladimir Oltean int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val, 13329e781401SVladimir Oltean struct netlink_ext_ack *extack); 1333dcbdf135SVladimir Oltean int __br_vlan_set_proto(struct net_bridge *br, __be16 proto, 1334dcbdf135SVladimir Oltean struct netlink_ext_ack *extack); 13359e781401SVladimir Oltean int br_vlan_set_proto(struct net_bridge *br, unsigned long val, 13369e781401SVladimir Oltean struct netlink_ext_ack *extack); 13376dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 13389163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 13395be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 13409e781401SVladimir Oltean int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val, 13419e781401SVladimir Oltean struct netlink_ext_ack *extack); 1342169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1343169327d5SPetr Machata struct netlink_ext_ack *extack); 1344f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1345169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1346348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 1347348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 1348169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 13492594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 1350a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1351281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats); 13529c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 1353091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 13549c0ec2e7SMike Manning void *ptr); 13558dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 13568dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 1357cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1358cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1359cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1360cf5bddb9SNikolay Aleksandrov int cmd); 1361a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1362a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 1363a37b85c9SVlad Yasevich 1364bcf2766bSFelix Fietkau void br_vlan_fill_forward_path_pvid(struct net_bridge *br, 1365bcf2766bSFelix Fietkau struct net_device_path_ctx *ctx, 1366bcf2766bSFelix Fietkau struct net_device_path *path); 1367bcf2766bSFelix Fietkau int br_vlan_fill_forward_path_mode(struct net_bridge *br, 1368bcf2766bSFelix Fietkau struct net_bridge_port *dst, 1369bcf2766bSFelix Fietkau struct net_device_path *path); 1370bcf2766bSFelix Fietkau 13712594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 1372a37b85c9SVlad Yasevich const struct net_bridge *br) 1373a37b85c9SVlad Yasevich { 1374907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 1375a37b85c9SVlad Yasevich } 1376a37b85c9SVlad Yasevich 13772594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 1378a37b85c9SVlad Yasevich const struct net_bridge_port *p) 1379a37b85c9SVlad Yasevich { 1380907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1381907b1e6eSNikolay Aleksandrov } 1382907b1e6eSNikolay Aleksandrov 1383907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1384907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1385907b1e6eSNikolay Aleksandrov { 1386907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1387907b1e6eSNikolay Aleksandrov } 1388907b1e6eSNikolay Aleksandrov 1389907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1390907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1391907b1e6eSNikolay Aleksandrov { 1392907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1393a37b85c9SVlad Yasevich } 1394a37b85c9SVlad Yasevich 1395a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1396a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1397a37b85c9SVlad Yasevich */ 1398a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1399a37b85c9SVlad Yasevich { 1400a37b85c9SVlad Yasevich int err = 0; 1401a37b85c9SVlad Yasevich 14022594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 14035978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 14042594e906SNikolay Aleksandrov } else { 1405a37b85c9SVlad Yasevich *vid = 0; 1406a37b85c9SVlad Yasevich err = -EINVAL; 1407a37b85c9SVlad Yasevich } 1408a37b85c9SVlad Yasevich 1409a37b85c9SVlad Yasevich return err; 1410a37b85c9SVlad Yasevich } 141178851988SVlad Yasevich 141277751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 141378851988SVlad Yasevich { 141477751ee8SNikolay Aleksandrov if (!vg) 14155be5a2dfSVlad Yasevich return 0; 14165be5a2dfSVlad Yasevich 141778851988SVlad Yasevich smp_rmb(); 141877751ee8SNikolay Aleksandrov return vg->pvid; 141978851988SVlad Yasevich } 142078851988SVlad Yasevich 14218dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 14228dcea187SNikolay Aleksandrov { 14238dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 14248dcea187SNikolay Aleksandrov } 1425243a2e63SVlad Yasevich #else 142677751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 142777751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 14282594e906SNikolay Aleksandrov struct sk_buff *skb, 1429f4b7002aSNikolay Aleksandrov u16 *vid, u8 *state, 1430f4b7002aSNikolay Aleksandrov struct net_bridge_vlan **vlan) 1431f4b7002aSNikolay Aleksandrov 14322594e906SNikolay Aleksandrov { 1433f4b7002aSNikolay Aleksandrov *vlan = NULL; 14342594e906SNikolay Aleksandrov return true; 14352594e906SNikolay Aleksandrov } 14362594e906SNikolay Aleksandrov 14372594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 143885f46c6bSVlad Yasevich const struct sk_buff *skb) 143985f46c6bSVlad Yasevich { 144085f46c6bSVlad Yasevich return true; 144185f46c6bSVlad Yasevich } 144285f46c6bSVlad Yasevich 1443e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1444e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1445e0d7968aSToshiaki Makita { 1446e0d7968aSToshiaki Makita return true; 1447e0d7968aSToshiaki Makita } 1448e0d7968aSToshiaki Makita 144978851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 145011538d03SRoopa Prabhu const struct net_bridge_port *port, 14512594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 145278851988SVlad Yasevich struct sk_buff *skb) 145378851988SVlad Yasevich { 145478851988SVlad Yasevich return skb; 145578851988SVlad Yasevich } 145678851988SVlad Yasevich 1457f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1458169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1459243a2e63SVlad Yasevich { 1460f418af63SNikolay Aleksandrov *changed = false; 1461243a2e63SVlad Yasevich return -EOPNOTSUPP; 1462243a2e63SVlad Yasevich } 1463243a2e63SVlad Yasevich 1464243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1465243a2e63SVlad Yasevich { 1466243a2e63SVlad Yasevich return -EOPNOTSUPP; 1467243a2e63SVlad Yasevich } 1468243a2e63SVlad Yasevich 1469243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1470243a2e63SVlad Yasevich { 1471243a2e63SVlad Yasevich } 1472243a2e63SVlad Yasevich 1473204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1474204177f3SToshiaki Makita { 1475204177f3SToshiaki Makita } 1476204177f3SToshiaki Makita 14775be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 14788580e211SToshiaki Makita { 14795be5a2dfSVlad Yasevich return 0; 14808580e211SToshiaki Makita } 14818580e211SToshiaki Makita 1482f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1483169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1484243a2e63SVlad Yasevich { 1485f418af63SNikolay Aleksandrov *changed = false; 1486243a2e63SVlad Yasevich return -EOPNOTSUPP; 1487243a2e63SVlad Yasevich } 1488243a2e63SVlad Yasevich 1489243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1490243a2e63SVlad Yasevich { 1491243a2e63SVlad Yasevich return -EOPNOTSUPP; 1492243a2e63SVlad Yasevich } 1493243a2e63SVlad Yasevich 1494243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1495243a2e63SVlad Yasevich { 1496243a2e63SVlad Yasevich } 1497243a2e63SVlad Yasevich 14982594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 14992594e906SNikolay Aleksandrov u16 vid) 1500a37b85c9SVlad Yasevich { 1501a37b85c9SVlad Yasevich return NULL; 1502a37b85c9SVlad Yasevich } 1503bc9a25d2SVlad Yasevich 1504169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1505169327d5SPetr Machata struct netlink_ext_ack *extack) 15065be5a2dfSVlad Yasevich { 15075be5a2dfSVlad Yasevich return 0; 15085be5a2dfSVlad Yasevich } 15095be5a2dfSVlad Yasevich 151078851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1511a37b85c9SVlad Yasevich { 1512a37b85c9SVlad Yasevich return 0; 1513a37b85c9SVlad Yasevich } 15142594e906SNikolay Aleksandrov 151577751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 151678851988SVlad Yasevich { 15173df6bf45SVlad Yasevich return 0; 151878851988SVlad Yasevich } 15192796d0c6SVlad Yasevich 15207a572964SVladimir Oltean static inline int br_vlan_filter_toggle(struct net_bridge *br, 1521c97f47e3SVladimir Oltean unsigned long val, 1522c97f47e3SVladimir Oltean struct netlink_ext_ack *extack) 1523a7854037SNikolay Aleksandrov { 1524a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1525a7854037SNikolay Aleksandrov } 15262594e906SNikolay Aleksandrov 15272594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 15282594e906SNikolay Aleksandrov u32 filter_mask) 15292594e906SNikolay Aleksandrov { 15302594e906SNikolay Aleksandrov return 0; 15312594e906SNikolay Aleksandrov } 15322594e906SNikolay Aleksandrov 1533bcf2766bSFelix Fietkau static inline void br_vlan_fill_forward_path_pvid(struct net_bridge *br, 1534bcf2766bSFelix Fietkau struct net_device_path_ctx *ctx, 1535bcf2766bSFelix Fietkau struct net_device_path *path) 1536bcf2766bSFelix Fietkau { 1537bcf2766bSFelix Fietkau } 1538bcf2766bSFelix Fietkau 1539bcf2766bSFelix Fietkau static inline int br_vlan_fill_forward_path_mode(struct net_bridge *br, 1540bcf2766bSFelix Fietkau struct net_bridge_port *dst, 1541bcf2766bSFelix Fietkau struct net_device_path *path) 1542bcf2766bSFelix Fietkau { 1543bcf2766bSFelix Fietkau return 0; 1544bcf2766bSFelix Fietkau } 1545bcf2766bSFelix Fietkau 15462594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 15472594e906SNikolay Aleksandrov const struct net_bridge *br) 15482594e906SNikolay Aleksandrov { 15492594e906SNikolay Aleksandrov return NULL; 15502594e906SNikolay Aleksandrov } 15512594e906SNikolay Aleksandrov 15522594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 15532594e906SNikolay Aleksandrov const struct net_bridge_port *p) 15542594e906SNikolay Aleksandrov { 15552594e906SNikolay Aleksandrov return NULL; 15562594e906SNikolay Aleksandrov } 1557907b1e6eSNikolay Aleksandrov 1558907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1559907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1560907b1e6eSNikolay Aleksandrov { 1561907b1e6eSNikolay Aleksandrov return NULL; 1562907b1e6eSNikolay Aleksandrov } 1563907b1e6eSNikolay Aleksandrov 1564907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1565907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1566907b1e6eSNikolay Aleksandrov { 1567907b1e6eSNikolay Aleksandrov return NULL; 1568907b1e6eSNikolay Aleksandrov } 1569a60c0903SNikolay Aleksandrov 1570a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1571281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats) 1572a60c0903SNikolay Aleksandrov { 1573a60c0903SNikolay Aleksandrov } 15749c0ec2e7SMike Manning 15759c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 15769c0ec2e7SMike Manning unsigned long event) 15779c0ec2e7SMike Manning { 15789c0ec2e7SMike Manning } 15799c0ec2e7SMike Manning 1580091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 15819c0ec2e7SMike Manning unsigned long event, void *ptr) 15829c0ec2e7SMike Manning { 1583091adf9bSNikolay Aleksandrov return 0; 15849c0ec2e7SMike Manning } 15858dcea187SNikolay Aleksandrov 15868dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 15878dcea187SNikolay Aleksandrov { 15888dcea187SNikolay Aleksandrov } 15898dcea187SNikolay Aleksandrov 15908dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 15918dcea187SNikolay Aleksandrov { 15928dcea187SNikolay Aleksandrov } 1593cf5bddb9SNikolay Aleksandrov 1594cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1595cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1596cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1597cf5bddb9SNikolay Aleksandrov int cmd) 1598cf5bddb9SNikolay Aleksandrov { 1599cf5bddb9SNikolay Aleksandrov } 1600528ae84aSNikolay Aleksandrov 1601528ae84aSNikolay Aleksandrov static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1602528ae84aSNikolay Aleksandrov const struct net_bridge_vlan *range_end) 1603528ae84aSNikolay Aleksandrov { 1604528ae84aSNikolay Aleksandrov return true; 1605528ae84aSNikolay Aleksandrov } 1606243a2e63SVlad Yasevich #endif 1607243a2e63SVlad Yasevich 16087a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 16097a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 161099f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 161199f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 16127a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 16137a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1614a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1615a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1616a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1617a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1618a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1619a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 162047ecd2dbSNikolay Aleksandrov int br_vlan_rtm_process_global_options(struct net_device *dev, 162147ecd2dbSNikolay Aleksandrov const struct nlattr *attr, 162247ecd2dbSNikolay Aleksandrov int cmd, 162347ecd2dbSNikolay Aleksandrov struct netlink_ext_ack *extack); 1624743a53d9SNikolay Aleksandrov bool br_vlan_global_opts_can_enter_range(const struct net_bridge_vlan *v_curr, 1625743a53d9SNikolay Aleksandrov const struct net_bridge_vlan *r_end); 1626743a53d9SNikolay Aleksandrov bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid, u16 vid_range, 1627743a53d9SNikolay Aleksandrov const struct net_bridge_vlan *v_opts); 1628a580c76dSNikolay Aleksandrov 1629a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1630a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1631a580c76dSNikolay Aleksandrov { 1632a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1633a580c76dSNikolay Aleksandrov } 1634a580c76dSNikolay Aleksandrov 1635a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1636a580c76dSNikolay Aleksandrov { 1637a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1638a580c76dSNikolay Aleksandrov } 1639a580c76dSNikolay Aleksandrov 1640a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1641a580c76dSNikolay Aleksandrov { 1642a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1643a580c76dSNikolay Aleksandrov } 1644a580c76dSNikolay Aleksandrov 1645a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1646a580c76dSNikolay Aleksandrov u8 state) 1647a580c76dSNikolay Aleksandrov { 1648a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1649a580c76dSNikolay Aleksandrov } 1650a580c76dSNikolay Aleksandrov 1651a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1652a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1653a580c76dSNikolay Aleksandrov { 1654a580c76dSNikolay Aleksandrov switch (state) { 1655a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1656a580c76dSNikolay Aleksandrov return learn_allow; 1657a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1658a580c76dSNikolay Aleksandrov return true; 1659a580c76dSNikolay Aleksandrov default: 1660a580c76dSNikolay Aleksandrov return false; 1661a580c76dSNikolay Aleksandrov } 1662a580c76dSNikolay Aleksandrov } 16637a53e718SNikolay Aleksandrov #endif 16647a53e718SNikolay Aleksandrov 16651a4ba64dSPablo Neira Ayuso struct nf_br_ops { 16661a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 16671a4ba64dSPablo Neira Ayuso }; 16681a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 16691a4ba64dSPablo Neira Ayuso 16701da177e4SLinus Torvalds /* br_netfilter.c */ 167134666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 167234666d46SPablo Neira Ayuso int br_nf_core_init(void); 167334666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1674348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1675c0909713SStephen Hemminger #else 167634666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 167734666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 16784adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1679c0909713SStephen Hemminger #endif 16801da177e4SLinus Torvalds 16811da177e4SLinus Torvalds /* br_stp.c */ 1682775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1683348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1684348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1685348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 16861da177e4SLinus Torvalds 1687348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1688348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1689348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1690348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 169182dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 16929e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 169314f98f25Sstephen hemminger 169414f98f25Sstephen hemminger 16951da177e4SLinus Torvalds /* br_stp_if.c */ 1696348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1697348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1698419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1699419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1700348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1701348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1702348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1703348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1704348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1705348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1706348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1707348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 17081da177e4SLinus Torvalds 17091da177e4SLinus Torvalds /* br_stp_bpdu.c */ 17107c85fbf0SPatrick McHardy struct stp_proto; 1711348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 17127c85fbf0SPatrick McHardy struct net_device *dev); 17131da177e4SLinus Torvalds 17141da177e4SLinus Torvalds /* br_stp_timer.c */ 1715348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1716348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1717348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 17181da177e4SLinus Torvalds 17191da177e4SLinus Torvalds /* br.c */ 1720e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1721da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1722da678292SMichał Mirosław #endif 17231da177e4SLinus Torvalds 172465369933SHoratiu Vultur /* br_mrp.c */ 172565369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 172665369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 172765369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 172865369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 172965369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1730df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 173165369933SHoratiu Vultur #else 173265369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 173365369933SHoratiu Vultur struct nlattr *attr, int cmd, 173465369933SHoratiu Vultur struct netlink_ext_ack *extack) 173565369933SHoratiu Vultur { 173665369933SHoratiu Vultur return -EOPNOTSUPP; 173765369933SHoratiu Vultur } 173865369933SHoratiu Vultur 173965369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 174065369933SHoratiu Vultur { 17418741e184SJason Yan return false; 174265369933SHoratiu Vultur } 174365369933SHoratiu Vultur 174465369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 174565369933SHoratiu Vultur struct net_bridge_port *p) 174665369933SHoratiu Vultur { 174765369933SHoratiu Vultur } 1748df42ef22SHoratiu Vultur 1749df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 1750df42ef22SHoratiu Vultur { 1751df42ef22SHoratiu Vultur return 0; 1752df42ef22SHoratiu Vultur } 1753df42ef22SHoratiu Vultur 175465369933SHoratiu Vultur #endif 175565369933SHoratiu Vultur 17562be665c3SHenrik Bjoernlund /* br_cfm.c */ 175786a14b79SHenrik Bjoernlund #if IS_ENABLED(CONFIG_BRIDGE_CFM) 17582be665c3SHenrik Bjoernlund int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p, 17592be665c3SHenrik Bjoernlund struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 17602be665c3SHenrik Bjoernlund bool br_cfm_created(struct net_bridge *br); 176186a14b79SHenrik Bjoernlund void br_cfm_port_del(struct net_bridge *br, struct net_bridge_port *p); 17625e312fc0SHenrik Bjoernlund int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br); 1763b6d0425bSHenrik Bjoernlund int br_cfm_status_fill_info(struct sk_buff *skb, 1764b6d0425bSHenrik Bjoernlund struct net_bridge *br, 1765b6d0425bSHenrik Bjoernlund bool getlink); 1766b6d0425bSHenrik Bjoernlund int br_cfm_mep_count(struct net_bridge *br, u32 *count); 1767b6d0425bSHenrik Bjoernlund int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count); 176886a14b79SHenrik Bjoernlund #else 17692be665c3SHenrik Bjoernlund static inline int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p, 17702be665c3SHenrik Bjoernlund struct nlattr *attr, int cmd, 17712be665c3SHenrik Bjoernlund struct netlink_ext_ack *extack) 17722be665c3SHenrik Bjoernlund { 17732be665c3SHenrik Bjoernlund return -EOPNOTSUPP; 17742be665c3SHenrik Bjoernlund } 17752be665c3SHenrik Bjoernlund 17762be665c3SHenrik Bjoernlund static inline bool br_cfm_created(struct net_bridge *br) 17772be665c3SHenrik Bjoernlund { 17782be665c3SHenrik Bjoernlund return false; 17792be665c3SHenrik Bjoernlund } 17802be665c3SHenrik Bjoernlund 178186a14b79SHenrik Bjoernlund static inline void br_cfm_port_del(struct net_bridge *br, 178286a14b79SHenrik Bjoernlund struct net_bridge_port *p) 178386a14b79SHenrik Bjoernlund { 178486a14b79SHenrik Bjoernlund } 17855e312fc0SHenrik Bjoernlund 17865e312fc0SHenrik Bjoernlund static inline int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br) 17875e312fc0SHenrik Bjoernlund { 17885e312fc0SHenrik Bjoernlund return -EOPNOTSUPP; 17895e312fc0SHenrik Bjoernlund } 1790e77824d8SHenrik Bjoernlund 1791b6d0425bSHenrik Bjoernlund static inline int br_cfm_status_fill_info(struct sk_buff *skb, 1792b6d0425bSHenrik Bjoernlund struct net_bridge *br, 1793b6d0425bSHenrik Bjoernlund bool getlink) 1794b6d0425bSHenrik Bjoernlund { 1795b6d0425bSHenrik Bjoernlund return -EOPNOTSUPP; 1796b6d0425bSHenrik Bjoernlund } 1797b6d0425bSHenrik Bjoernlund 1798b6d0425bSHenrik Bjoernlund static inline int br_cfm_mep_count(struct net_bridge *br, u32 *count) 1799b6d0425bSHenrik Bjoernlund { 1800b6d0425bSHenrik Bjoernlund return -EOPNOTSUPP; 1801b6d0425bSHenrik Bjoernlund } 1802b6d0425bSHenrik Bjoernlund 1803b6d0425bSHenrik Bjoernlund static inline int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count) 1804e77824d8SHenrik Bjoernlund { 1805e77824d8SHenrik Bjoernlund return -EOPNOTSUPP; 1806e77824d8SHenrik Bjoernlund } 180786a14b79SHenrik Bjoernlund #endif 180886a14b79SHenrik Bjoernlund 180911dc1f36SStephen Hemminger /* br_netlink.c */ 1810149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1811348662a1SJoe Perches int br_netlink_init(void); 1812348662a1SJoe Perches void br_netlink_fini(void); 181392899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 181492899063SNikolay Aleksandrov const struct net_bridge_port *port); 1815b6d0425bSHenrik Bjoernlund void br_info_notify(int event, const struct net_bridge *br, 1816b6d0425bSHenrik Bjoernlund const struct net_bridge_port *port, u32 filter); 18172fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 18182fd527b7SPetr Machata struct netlink_ext_ack *extack); 1819add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1820348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 182146c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1822f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1823f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1824f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1825f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1826f26b2965SNikolay Aleksandrov bool *changed, 1827f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 182811dc1f36SStephen Hemminger 18291da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 18301da177e4SLinus Torvalds /* br_sysfs_if.c */ 183152cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1832348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1833348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 18341da177e4SLinus Torvalds 18351da177e4SLinus Torvalds /* br_sysfs_br.c */ 1836348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1837348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 18381da177e4SLinus Torvalds 18391da177e4SLinus Torvalds #else 18401da177e4SLinus Torvalds 18410cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 18420cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 18430cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 18440cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 18451da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 18461da177e4SLinus Torvalds 18476bc506b4SIdo Schimmel /* br_switchdev.c */ 18486bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 18496bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 18506bc506b4SIdo Schimmel struct sk_buff *skb); 18516bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 18526bc506b4SIdo Schimmel const struct sk_buff *skb); 18533922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 18543922285dSArkadi Sharshevsky unsigned long flags, 1855078bbb85SVladimir Oltean unsigned long mask, 1856078bbb85SVladimir Oltean struct netlink_ext_ack *extack); 18576eb38bf8STobias Waldekranz void br_switchdev_fdb_notify(struct net_bridge *br, 18586eb38bf8STobias Waldekranz const struct net_bridge_fdb_entry *fdb, int type); 1859169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1860169327d5SPetr Machata struct netlink_ext_ack *extack); 1861d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 186285826610STobias Waldekranz void br_switchdev_init(struct net_bridge *br); 1863f1c2eddfSIdo Schimmel 1864f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1865f1c2eddfSIdo Schimmel { 1866f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1867f1c2eddfSIdo Schimmel } 18686bc506b4SIdo Schimmel #else 18696bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 18706bc506b4SIdo Schimmel struct sk_buff *skb) 18716bc506b4SIdo Schimmel { 18726bc506b4SIdo Schimmel } 18736bc506b4SIdo Schimmel 18746bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 18756bc506b4SIdo Schimmel const struct sk_buff *skb) 18766bc506b4SIdo Schimmel { 18776bc506b4SIdo Schimmel return true; 18786bc506b4SIdo Schimmel } 18793922285dSArkadi Sharshevsky 18803922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 18813922285dSArkadi Sharshevsky unsigned long flags, 1882078bbb85SVladimir Oltean unsigned long mask, 1883078bbb85SVladimir Oltean struct netlink_ext_ack *extack) 18843922285dSArkadi Sharshevsky { 18853922285dSArkadi Sharshevsky return 0; 18863922285dSArkadi Sharshevsky } 18876b26b51bSArkadi Sharshevsky 1888d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1889169327d5SPetr Machata u16 vid, u16 flags, 1890169327d5SPetr Machata struct netlink_ext_ack *extack) 1891d66e4348SPetr Machata { 1892d66e4348SPetr Machata return -EOPNOTSUPP; 1893d66e4348SPetr Machata } 1894d66e4348SPetr Machata 1895d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1896d66e4348SPetr Machata { 1897d66e4348SPetr Machata return -EOPNOTSUPP; 1898d66e4348SPetr Machata } 1899d66e4348SPetr Machata 19006b26b51bSArkadi Sharshevsky static inline void 19016eb38bf8STobias Waldekranz br_switchdev_fdb_notify(struct net_bridge *br, 19026eb38bf8STobias Waldekranz const struct net_bridge_fdb_entry *fdb, int type) 19036b26b51bSArkadi Sharshevsky { 19046b26b51bSArkadi Sharshevsky } 1905f1c2eddfSIdo Schimmel 1906f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1907f1c2eddfSIdo Schimmel { 1908f1c2eddfSIdo Schimmel } 190985826610STobias Waldekranz 191085826610STobias Waldekranz static inline void br_switchdev_init(struct net_bridge *br) 191185826610STobias Waldekranz { 191285826610STobias Waldekranz } 191385826610STobias Waldekranz 19146bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 19156bc506b4SIdo Schimmel 1916057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1917821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1918057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1919057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1920ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1921ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1922ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 19231da177e4SLinus Torvalds #endif 1924